Improvement in door and gate springs



SfDf. TUTTLE.

Improvement in Door and Gate Springs.

y N0. 131,914. PatentedVc`t.1,'1r872.

UNITED STATES STEELINGr D. TUTTLE, OE EATON, OHIO, ASSIONOE TO EIMSELE,w. w. r

AKEE,A`ND ISAAO N. WELSH, OE ,SAME PLAOE.

IMPROVEMENT IN DOOR AND GATE SPRINGS..

Specification forming part of Letters Patent No. 131914, dated October1, 1872.

To all lwhom it may concern:

Be it known that I, STERLING D. TUTTLE, of Eaton, county of Preble andStat-e of Ohio, have invented certain Improvements in Door and GateSprings, of which the following is a Specification: Y

My invention relates to the construction of door and gate springswherein a stationary disk or plate is attached to the facing of the dooror to the posts of gates, as the case may be, said stationary platehaving a central stud upon which a movable plate or disk revolves, saidmovable plate carrying a coiled spring, and having a groove around itsperiphery, to which a cord is attached, the opposite end of the cordbeing attached to the door or gate 5 and consists in the combination .ofthe two concentric plates to which the ends of the spring are attached,and an adjustable guidearm for the cord, as hereinafter described.

Figure l is a plan vienT of the revolving plate or disk B with itssquare projections I, i to which the spring Gis attached. Fig. 2 is aperspective view of the stationary plate or disk with the studs K L, andAthe lugs orprojections Y, attached. Fig. 3 is a sectional view, showingthe manner of attaching the y machine to a uted post or column of anykind--cast-iron, stone, or Wood. Fig. 4 is a view of the arm whichsupports Fig. 5 in place. Fig. 5 is a view of a small channel-pulleyover which a cord passes. n

A is the top or stationary plate or disk,

which is fastened to the facing of the door, or post, or otherposition,when applied to gates. This stationary plate A has a stud, K,attached toitscenter; also a stud, L, to which the loop J on the outerend of the spring Gis attached. The revolving plate B, which inclosesand car-- ries the spring G, has. a hole, R, in its center,

and through the square stud or projection I, to which the spring isattached. The plate B has a groove around its periphery to which a cordis attached, the vopposite end of the cord being attached to the. dooror gate. This plate B, carrying the spring and cord, is placed on theplate A, the stud Kpassing `through the hole R on plate B sufficientlyfar to receive the arm Dl on the outside of the plate B. The hole Ninthe large end of the arm D fits onto the end of the stud-K outside theplate B, the arm being held in place by means of a pin passing throughthe Outer end of the stud K. The pivot F on the small or outer end ofthe arm D ts'into the hole G in the outer ends of the lugs Y on plate A.The small channeled pulley shown'in Fig. 5 iits into the hole E in arm Dand lugs Y. The cordpassing over the channel O ofthe pulley, and betweenit and thestud or arm S of arm D, prevents the cord from being thrownofi' from the groove in the periphery of the plate B. The armD andpulley O may be kadjusted to suit any situation to which the machine maybe attached.

Fig. 3 shows the manner of attaching the machine to a fluted or anyother shaped post made of cast-iron or stone, Such as are frequentlyused for gate-posts. rI he machine is secured to a block, P, which isiluted to t the postor other thing to which it may be attached, the

block P being held to the post' H by means of a wire lashed around `theblock and post, as shown in Fig. 3.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

The plateA, constructed with the studs K L, and series of perforationsEG, in combination with the plate B, spring C, adjustable arm DF, androller O, all arranged to operate substantially as and for the purposesset STERLINGr D. TUTTLE.

` forth.

Witnesses F. B. HUNT,

OLIvEE GEST.

EEIOE.

